Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 8 - Jul 13
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
COMP Cams Rocker Arm FS/FW 1.6 3/8 UltraUltra Pro Magnum Roller Rocker Arms not only live up to the lofty standards of the original Pro Magnums but they also take Stud mount Rocker performance, stability and value to a whole new level. The 8650 chromemoly material and arched, web like design deliver increased strength and rigidity while still reducing the moment of inertia and optimizing the dynamic balance. A unique black oxide exterior finish helps prevent corrosion and increases
Ultra Pro Magnumâ„¢ Roller Rocker Arms not only live up to the lofty standards of the original Pro Magnums but they also take Stud mount Rocker performance, stability and value to a whole new level. The 8650 chromemoly material and arched, web-like design deliver increased strength and rigidity while still reducing the moment of inertia and optimizing the dynamic balance. A unique black oxide exterior finish helps prevent corrosion and increases durability. Featuring Oversized trunnions, precision-sorted needle bearings and hardened Roller tips for the ultimate in performance and dependability. Optimized retainer and valve spring clearances allow for use of most diameter springs, retainers and +.050" locks without clearance or fitment issues.Ford V8 289-302-351W - 3/8" Stud - 1.6 RatioInvestment cast 8650 chromemoly body and arched, web-like design deliver increased strength and rigidity while still reducing the moment of inertia. Unique black oxide exterior finish helps prevent corrosion and increases durability.Optimized retainer and valve spring clearances allow for use of most diameter springs, retainers and +.050" locks without clearance or fitment issues.Feature Oversized trunnions, precision-sorted needle bearings and hardened Roller tips.Lifetime Warranty - So strong that we guarantee the Rocker bodies against breakage for life. For use with up to 850 lbs of open spring pressure.This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1975 | Buick | Apollo | Base |
| 1975 | Buick | Apollo | SR |
| 1975-1976 | Buick | Skylark | Base |
| 1976 | Buick | Skylark | S |
| 1975-1976 | Buick | Skylark | SR |
| 1967 | Chevrolet | Camaro | Base |
| 1968 | Chevrolet | Camaro | RS |
| 1967-1969 | Chevrolet | Camaro | Z28 |
| 1967-1972 | DeTomaso | Mangusta | Base |
| 1966-1974 | Ford | Bronco | Base |
| 1975-1977,1980-1993 | Ford | Bronco | Custom |
| 1985-1995 | Ford | Bronco | Eddie Bauer |
| 1975 | Ford | Bronco | Northland |
| 1975 | Ford | Bronco | Ranger |
| 1980-1981 | Ford | Bronco | Ranger XLT |
| 1968-1969 | Ford | Bronco | Roadster |
| 1975-1977 | Ford | Bronco | Sport |
| 1968-1973 | Ford | Bronco | Wagon |
| 1990-1995 | Ford | Bronco | XL |
| 1982-1983 | Ford | Bronco | XLS |
| 1984-1992,1994-1995 | Ford | Bronco | XLT |
| 1982-1983,1993 | Ford | Bronco | XLT Lariat |
| 1992 | Ford | Bronco | XLT Nite |
| 1995 | Ford | Bronco | XLT Sport |
| 1963-1974 | Ford | Country Sedan | Base |
| 1963-1974,1987-1991 | Ford | Country Squire | Base |
| 1987-1991 | Ford | Country Squire | LX |
| 1964-1972 | Ford | Custom | Base |
| 1964-1974,1976-1977 | Ford | Custom 500 | Base |
| 1969-1982 | Ford | E-100 Econoline | Base |
| 1975-1982 | Ford | E-100 Econoline | Chateau |
| 1969-1974 | Ford | E-100 Econoline | Club Wagon |
| 1975-1983 | Ford | E-100 Econoline | Custom |
| 1975-1978 | Ford | E-100 Econoline | Northland |
| 1983 | Ford | E-100 Econoline | XL |
| 1975-1982 | Ford | E-100 Econoline Club Wagon | Base |
| 1975-1982 | Ford | E-100 Econoline Club Wagon | Chateau |
| 1975-1983 | Ford | E-100 Econoline Club Wagon | Custom |
| 1975-1978 | Ford | E-100 Econoline Club Wagon | Northland |
| 1983 | Ford | E-100 Econoline Club Wagon | XL |
| 1975-1982,1984-1986,1992-1995 | Ford | E-150 Econoline | Base |
| 1975-1982 | Ford | E-150 Econoline | Chateau |
| 1975-1983,1987-1991 | Ford | E-150 Econoline | Custom |
| 1975-1978 | Ford | E-150 Econoline | Northland |
| 1983-1995 | Ford | E-150 Econoline | XL |
| 1975-1982,1984-1986 | Ford | E-150 Econoline Club Wagon | Base |
| 1975-1982,1992-1995 | Ford | E-150 Econoline Club Wagon | Chateau |
| 1975-1983,1987-1995 | Ford | E-150 Econoline Club Wagon | Custom |
| 1975-1978 | Ford | E-150 Econoline Club Wagon | Northland |
| 1983-1991 | Ford | E-150 Econoline Club Wagon | XL |
| 1984-1995 | Ford | E-150 Econoline Club Wagon | XLT |
| 1969-1974 | Ford | E-200 Econoline | Base |
| 1971-1972 | Ford | E-200 Econoline | Chateau Wagon |
| 1969-1974 | Ford | E-200 Econoline | Club Wagon |
| 1970-1974 | Ford | E-200 Econoline | Custom Wagon |
| 1975-1982,1984-1986,1992-1995 | Ford | E-250 Econoline | Base |
| 1975-1982 | Ford | E-250 Econoline | Chateau |
| 1975-1983,1987-1991 | Ford | E-250 Econoline | Custom |
| 1975-1978 | Ford | E-250 Econoline | Northland |
| 1983-1995 | Ford | E-250 Econoline | XL |
| 1975-1982,1984-1986 | Ford | E-250 Econoline Club Wagon | Base |
| 1975-1982 | Ford | E-250 Econoline Club Wagon | Chateau |
| 1975-1983,1987-1991 | Ford | E-250 Econoline Club Wagon | Custom |
| 1975-1978 | Ford | E-250 Econoline Club Wagon | Northland |
| 1983-1991 | Ford | E-250 Econoline Club Wagon | XL |
| 1984-1991 | Ford | E-250 Econoline Club Wagon | XLT |
| 1969-1974 | Ford | E-300 Econoline | Base |
| 1970-1974 | Ford | E-300 Econoline | Chateau Wagon |
| 1969-1974 | Ford | E-300 Econoline | Club Wagon |
| 1971-1972 | Ford | E-300 Econoline | Custom Wagon |
| 1975-1982,1984-1986,1992-1995 | Ford | E-350 Econoline | Base |
| 1975-1982 | Ford | E-350 Econoline | Chateau |
| 1975-1983,1987-1991 | Ford | E-350 Econoline | Custom |
| 1975-1978 | Ford | E-350 Econoline | Northland |
| 1983-1995 | Ford | E-350 Econoline | XL |
| 1977-1982,1984-1986 | Ford | E-350 Econoline Club Wagon | Base |
| 1977-1982,1992-1995 | Ford | E-350 Econoline Club Wagon | Chateau |
| 1992-1995 | Ford | E-350 Econoline Club Wagon | Chateau HD |
| 1977-1983,1987-1995 | Ford | E-350 Econoline Club Wagon | Custom |
| 1992-1993 | Ford | E-350 Econoline Club Wagon | Custom HD |
| 1977-1978 | Ford | E-350 Econoline Club Wagon | Northland |
| 1983-1991 | Ford | E-350 Econoline Club Wagon | XL |
| 1994-1995 | Ford | E-350 Econoline Club Wagon | XL HD |
| 1984-1989,1991-1995 | Ford | E-350 Econoline Club Wagon | XLT |
| 1992-1995 | Ford | E-350 Econoline Club Wagon | XLT HD |
| 1975-1976 | Ford | Elite | Base |
| 1976-1978,1983 | Ford | F-100 | Base |
| 1975-1982 | Ford | F-100 | Custom |
| 1975-1978 | Ford | F-100 | Northland |
| 1975-1981 | Ford | F-100 | Ranger |
| 1978-1981 | Ford | F-100 | Ranger Lariat |
| 1975-1981 | Ford | F-100 | Ranger XLT |
| 1982-1983 | Ford | F-100 | XL |
| 1982-1983 | Ford | F-100 | XLS |
| 1977 | Ford | F-100 | XLT |
| 1982-1983 | Ford | F-100 | XLT Lariat |
| 1976-1978,1983-1986 | Ford | F-150 | Base |
| 1975-1982,1987-1992 | Ford | F-150 | Custom |
| 1995 | Ford | F-150 | Eddie Bauer |
| 1993-1995 | Ford | F-150 | Lightning |
| 1975-1978 | Ford | F-150 | Northland |
| 1975-1981 | Ford | F-150 | Ranger |
| 1978-1981 | Ford | F-150 | Ranger Lariat |
| 1975-1981 | Ford | F-150 | Ranger XLT |
| 1995 | Ford | F-150 | Special |
| 1982-1995 | Ford | F-150 | XL |
| 1982-1983 | Ford | F-150 | XLS |
| 1977,1983-1984,1993-1995 | Ford | F-150 | XLT |
| 1982,1985-1992 | Ford | F-150 | XLT Lariat |
| 1976-1978,1983-1986 | Ford | F-250 | Base |
| 1975-1982,1987-1992 | Ford | F-250 | Custom |
| 1995 | Ford | F-250 | Eddie Bauer |
| 1975-1978 | Ford | F-250 | Northland |
| 1975-1981 | Ford | F-250 | Ranger |
| 1978-1981 | Ford | F-250 | Ranger Lariat |
| 1975-1981 | Ford | F-250 | Ranger XLT |
| 1995 | Ford | F-250 | Special |
| 1982-1995 | Ford | F-250 | XL |
| 1982-1983 | Ford | F-250 | XLS |
| 1977,1983-1984,1993-1995 | Ford | F-250 | XLT |
| 1982,1985-1992 | Ford | F-250 | XLT Lariat |
| 1976-1978,1983-1986 | Ford | F-350 | Base |
| 1975-1982,1987-1992 | Ford | F-350 | Custom |
| 1995 | Ford | F-350 | Eddie Bauer |
| 1975-1978 | Ford | F-350 | Northland |
| 1975-1981 | Ford | F-350 | Ranger |
| 1978-1981 | Ford | F-350 | Ranger Lariat |
| 1975-1981 | Ford | F-350 | Ranger XLT |
| 1995 | Ford | F-350 | Special |
| 1982-1995 | Ford | F-350 | XL |
| 1982-1983 | Ford | F-350 | XLS |
| 1977,1983-1984,1993-1995 | Ford | F-350 | XLT |
| 1982,1985-1992 | Ford | F-350 | XLT Lariat |
| 1963-1970 | Ford | Fairlane | 500 |
| 1966-1967 | Ford | Fairlane | 500XL |
| 1963-1969 | Ford | Fairlane | Base |
| 1978-1979 | Ford | Fairmont | Base |
| 1978-1979 | Ford | Fairmont | Futura |
| 1963-1970 | Ford | Falcon | Base |
| 1964-1970 | Ford | Falcon | Futura |
| 1963-1965 | Ford | Falcon | Futura Sprint |
| 1963-1965 | Ford | Falcon Sedan Delivery | Base |
| 1963-1967 | Ford | Galaxie | Base |
| 1963-1974 | Ford | Galaxie 500 | Base |
| 1963-1964 | Ford | Galaxie 500 | Sunliner |
| 1963-1964 | Ford | Galaxie 500 | Victoria |
| 1963-1970 | Ford | Galaxie 500 | XL |
| 1972-1976 | Ford | Gran Torino | Base |
| 1973-1976 | Ford | Gran Torino | Brougham |
| 1974-1975 | Ford | Gran Torino | Elite |
| 1972-1975 | Ford | Gran Torino | Sport |
| 1972-1976 | Ford | Gran Torino | Squire |
| 1975-1980 | Ford | Granada | Base |
| 1978-1980 | Ford | Granada | ESS |
| 1975-1980 | Ford | Granada | Ghia |
| 1966-1969 | Ford | GT40 | MK III |
| 1965-1974,1976-1982,1984-1985 | Ford | LTD | Base |
| 1970-1974,1976,1984-1985 | Ford | LTD | Brougham |
| 1979-1986 | Ford | LTD | Country Squire |
| 1986 | Ford | LTD | Country Squire LX |
| 1980-1986 | Ford | LTD | Crown Victoria |
| 1986 | Ford | LTD | Crown Victoria LX |
| 1976-1979 | Ford | LTD | Landau |
| 1985 | Ford | LTD | LX Brougham |
| 1980-1982 | Ford | LTD | S |
| 1987-1991 | Ford | LTD Crown Victoria | Base |
| 1987-1991 | Ford | LTD Crown Victoria | LX |
| 1987-1991 | Ford | LTD Crown Victoria | S |
| 1977-1979 | Ford | LTD II | Base |
| 1977-1978 | Ford | LTD II | Brougham |
| 1979 | Ford | LTD II | Landau |
| 1977-1979 | Ford | LTD II | S |
| 1977 | Ford | LTD II | Squire |
| 1971-1977 | Ford | Maverick | Base |
| 1975-1977 | Ford | Maverick | Grabber |
| 1964-1973,1979 | Ford | Mustang | Base |
| 1969-1971 | Ford | Mustang | Boss 302 |
| 1979 | Ford | Mustang | Ghia |
| 1982 | Ford | Mustang | GL |
| 1982 | Ford | Mustang | GLX |
| 1970-1973 | Ford | Mustang | Grande |
| 1982-1995 | Ford | Mustang | GT |
| 1984 | Ford | Mustang | GT-350 20th Anniversary |
| 1995 | Ford | Mustang | GTS |
| 1982,1984 | Ford | Mustang | L |
| 1984-1993 | Ford | Mustang | LX |
| 1970-1973 | Ford | Mustang | Mach 1 |
| 1965-1970 | Ford | Mustang | Shelby GT-350 |
| 1966 | Ford | Mustang | Shelby GT-350H |
| 1993-1995 | Ford | Mustang | SVT Cobra |
| 1993,1995 | Ford | Mustang | SVT Cobra R |
| 1975-1978 | Ford | Mustang II | Base |
| 1975-1978 | Ford | Mustang II | Ghia |
| 1975-1978 | Ford | Mustang II | Mach 1 |
| 1963-1974 | Ford | Ranch Wagon | Base |
| 1970 | Ford | Ranch Wagon | Police Cruiser |
| 1968-1979 | Ford | Ranchero | 500 |
| 1965-1971 | Ford | Ranchero | Base |
| 1968-1979 | Ford | Ranchero | GT |
| 1970-1979 | Ford | Ranchero | Squire |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 1207 reviews
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Product Reviews
★★★★★ 4
Great budget multi tool
Style: Corded
Nice little rig that fits the bill for occasional hobby use. The motor is powerful enough to polish and cut without bogging down. Bits attach securely and easily. Light and easy to use. The price is great for this multi tool. Recommended
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Reviewed in the United States on December 22, 2025
★★★★★ 5
Favorite DIY Sidekick
Style: Corded
Bought this for one task: grind away an interfering piece of metal in my door’s strike plate. I was unhappy about spending $20 on another DIY tool for one tiny specific purpose but to my pleasant surprise, I haven’t stopped using this dremel since.
I’ve cut and sanded wood projects, trimmed custom cabinet panels, smoothed jagged hole edges, and more. I hardly ever turn the dial past 4 to find a speed I’m comfortable with. It’s very powerful and gives great results. I bought a cheaper one that busted on the first try and I’m so happy this was my next choice. It’s handled all the fixer-upper challenges I’ve asked of it.
The starter kit is a little sparse on the good stuff like saw blades and washers but very helpful. The case is convenient. My only gripe is I have to be intentional about placement to get it to close but the cord and extension tool is so long and useful that it makes up for it. It’s a little bulky but comfortable to hold and I’ve been able to reach all the narrow corners and tight spaces I’ve needed.
My next project is to cut away some protruding screw threads and my immediate thought was to reach for the WEN rotary. For the amount of value I’ve gotten out of it, this thing has paid for itself a few times already.
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Reviewed in the United States on December 8, 2025
★★★★★ 5
Perfect rotary tool for light or heavy project with power.
Style: Corded, Style: Corded
Polishing is my main purpose for using rotary tool. I've had hardell and dremmel before. Heavy use of these tool they get hot and wear out fast. Wen rotary tool is better. It's heavy duty, twice as big, 1.5 lbs, it has big motor and variable speed without the noise.
It's perfect for hobbies and for 3in polishing or sanding pad. It's polarized electric plug in. The attachments came with it is superior than any rotary tool I've used. Its a solid product. I can already tell undoubtedly this is a good product if not the best. The other rotary tool have the lock chuck button opposite of the power button which premarturely damages internal mechanism accidentally use the lock button while still spinning. Wen is power button is switch away from chuck lock button. It's not too big nor too small to use. The life expectancy for Wen rotary tool will likely be three times longer than dremmel or hardell in my guess because of its design.
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Reviewed in the United States on February 13, 2026
★★★★★ 5
Love this thing. But, love the company even more!
Style: Corded
This is my 1st rotary tool ever. So excited because the things you can do are limitless.
I received my tool and only used it 3 times. I was so happy I bought this but then the power switch broke, oddly.
I said well, you get what you pay for right? Well, I called the phone number listed here on Amazon, and they answered. I briefly explained what happened, and just asked if I could send them the main unit for replacement. The customer service person asked for my details, order number, etc.
Then within a few minutes, he said, Sir, we're just going to send you a new one, if that's okay. I was like huh? I said, I know it's been 8 months and that really would be awesome because I love it!
He said we stand behind all of our products and it's the least we can do, and we apologize for any inconvenience.
I was like huh? Lol.
It really is hard to find service like this these days. To be so excited about a 20 dollar tool, that you've always wanted but just never got around to getting, spending 20 bucks and not only getting a fantastic tool, but getting the authentic service we all deserve, priceless!
Thank you so much Wen and Amazon! Hope this helps others that are interested in this really useful and fun tool.
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Reviewed in the United States on November 12, 2023
★★★★★ 3
Safety concerns
Style: Corded
The variable speed when base is nice and works very well. However the flexible accessory shaft has a major design flaw., there is no locking mechanism on the flexible shaft making it impossible to tighten the collet down to hold the bit in place. Making it easy for the bit to come out of the flexible shaft while it is rotating at any speed.
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Reviewed in the United States on May 3, 2026